Figure. Flowchart of Study Sites and Participants.

^aDuring Promotion of Breastfeeding Intervention Trial (PROBIT) III, 6 deaths were reported in the intervention arm. Data checking during PROBIT IV found that 1 of these children had been incorrectly reported as dead and data were amended.

^bOf the 13 557 children seen at PROBIT IV, 12 072 were seen at both PROBIT II and III, 274 were not seen at either PROBIT II or III, 449 were seen at PROBIT II but not at PROBIT III, and 762 were seen at PROBIT III but not at PROBIT II.